DataVXACS Applied Materials & InterfacesPaper
journal article·2018-10-31

Refreshing Piezoelectrics: Distinctive Role of Manganese in Lead-Free Perovskites

Fang-Zhou Yao, Mao-Hua Zhang, Ke Wang, Jia-Jun Zhou, Feng Chen, Bin Xu, Fei Li, Yang Shen, Qing-Hua Zhang, Lin Gu, Xiao-Wen Zhang, Jing-Feng Li

ACS Applied Materials & Interfaces· Volume 10· Issue 43
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Source abstract

Abstract

Driven by an ever-growing demand for environmentally compatible materials, the past two decades have witnessed the booming development in the field of piezoelectrics. To maximally explore the potential of lead-free piezoelectrics, chemical doping could be an effective approach, referenced from tactics adopted in lead-based piezoelectrics. Herein, we reveal the distinct role of manganese in a promising lead-free perovskite (K, Na)NbO3 (denoted by KNN) in comparison to that in market-dominating lead-based counterparts [Pb(Zr, Ti)O3, PZT]. In contrast to the scenario in PZT, manganese doping in KNN results in tremendously improved piezoelectric coefficient d33 by nearly 200%, whereas the same doping species in PZT deteriorates the d33 down to less than 30% of its original value. The result is rationalized from macroscopic and local electrical characterizations down to atomic-scale visualization. This study demonstrates that there is enormous space to further enhance piezoelectricity in lead-free systems because the chemical doping effect may completely differ in lead-containing and lead-free perovskites.
Source: openalex_inverted_index · Quality: baseline

Research context

Electronic materials

OpenAlex topics: Ferroelectric and Piezoelectric Materials · Perovskite Materials and Applications · Multiferroics and related materials

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

State Key Laboratory of New Ceramics and Fine Processing, School of Materials Science and Engineering, Tsinghua University, Beijing 100084, China

Institute of Optics and Electronics, Chinese Academy of Sciences, Chengdu 610209, China

High Magnetic Field Laboratory, Chinese Academy of Sciences, Hefei National Laboratory for Physical Sciences at the Microscale, University of Sciences and Technology of China, Hefei 230031, China

Physics Department and Institute for Nanoscience and Engineering, University of Arkansas, Fayetteville, Arkansas 72701, United States

Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing 100190, China

Collaborative Innovation Center of Quantum Matter, Beijing 100190, China

Funding

China Postdoctoral Science Foundation · Ministry of Industry and Information Technology of the People's Republic of China · Tsinghua University · National Natural Science Foundation of China

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